ZA903988B - An arrangement in hand-held button-bit grinding machines - Google Patents

An arrangement in hand-held button-bit grinding machines

Info

Publication number
ZA903988B
ZA903988B ZA903988A ZA903988A ZA903988B ZA 903988 B ZA903988 B ZA 903988B ZA 903988 A ZA903988 A ZA 903988A ZA 903988 A ZA903988 A ZA 903988A ZA 903988 B ZA903988 B ZA 903988B
Authority
ZA
South Africa
Prior art keywords
button
grinding
hand
disk
arrangement
Prior art date
Application number
ZA903988A
Inventor
Jan Siden
Siden Jan
Original Assignee
Inovac Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inovac Ab filed Critical Inovac Ab
Publication of ZA903988B publication Critical patent/ZA903988B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/04—Protective covers for the grinding wheel
    • B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
    • B24B55/052—Protective covers for the grinding wheel specially designed for portable grinding machines with rotating tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Auxiliary Devices For Music (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

An arrangement in hand-held grinding machines intended for grinding the buttons of button drill-bits and provided with a driven spindle which carries a grinding disk. The grinding disk presents a profiled groove for shaping respective buttons of the bit to their intended tip profile. In order to enable buttons to be ground quickly and effectively with the aid of a hand-held grinding machine without needing to rotate the button to be ground about its own longitudinal axis, there is provided a spring-steel guide-spring (17) which is mounted fixedly in relation to the grinding disk (4) and which presents on both sides of the disk (4) obliquely and inwardly extending fingers (24) which are intended to engage the button (6) to be ground when the grinding disk (4) is brought into engagement with the button (6).
ZA903988A 1989-05-24 1990-05-23 An arrangement in hand-held button-bit grinding machines ZA903988B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8901846A SE463754B (en) 1989-05-24 1989-05-24 DEVICE FOR HANDHALLEN GRINDING MACHINE FOR GRIPPING CUTTER DRILLS

Publications (1)

Publication Number Publication Date
ZA903988B true ZA903988B (en) 1991-03-27

Family

ID=20376036

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA903988A ZA903988B (en) 1989-05-24 1990-05-23 An arrangement in hand-held button-bit grinding machines

Country Status (8)

Country Link
US (1) US5138797A (en)
EP (1) EP0399973B1 (en)
AT (1) ATE99587T1 (en)
AU (1) AU623010B2 (en)
CA (1) CA2017335C (en)
DE (1) DE69005700T2 (en)
SE (1) SE463754B (en)
ZA (1) ZA903988B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9201835L (en) * 1992-06-15 1993-10-18 Uniroc Grinding Ab Vibration dampening grinding cup for grinding cemented carbide pins of pin drill bits and holders for such grinding cup
US5449317A (en) * 1994-06-08 1995-09-12 Takessian; Karabet Grinding and cutting guide assembly for hand held shaping tool
US6796755B2 (en) * 2002-09-03 2004-09-28 Joseph J. Angeloni Guide for rotary cutter
US8221424B2 (en) 2004-12-20 2012-07-17 Spinascope, Inc. Surgical instrument for orthopedic surgery
WO2005062827A2 (en) * 2003-12-19 2005-07-14 Spinascope Inc. Dissecting high speed burr for spinal surgery
SE0700991L (en) * 2007-04-25 2008-10-26 Atlas Copco Secoroc Ab Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method
CA2636995A1 (en) * 2008-07-08 2010-01-08 C.M.E. Blasting & Mining Equipment Ltd. Manual locking means for bit holder with micro/macro adjustment
US9320583B2 (en) * 2012-11-14 2016-04-26 Louis Dale Jeffrey Burr with floating guard
USD775676S1 (en) * 2015-07-13 2017-01-03 Edward Matti Button drill bit
AU2017399764A1 (en) * 2017-02-21 2019-08-08 Montrae Mining Pty Ltd Drill bit sharpener

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA662533A (en) * 1963-05-07 The Scholl Mfg. Co. Limited Protective shield for hand tools
US2073861A (en) * 1935-12-23 1937-03-16 Papendick Inc Grinding tool
GB795280A (en) * 1955-09-22 1958-05-21 Scholl Mfg Co Ltd Improvements in and relating to protective shields for use with power driven tools
US3568378A (en) * 1968-07-19 1971-03-09 Dsd Co Adjustable precision guard for powered hand tools,such as grinders,buffers or the like
ZA777206B (en) * 1977-12-05 1979-05-30 Boart Int Ltd Button grinding
DE2949656A1 (en) * 1979-12-11 1981-06-19 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen DEVICE FOR BEVELING OR DEBURRING WORKPIECES
SE447714B (en) * 1984-04-26 1986-12-08 Finsliparna Ab GRINDING DISK FOR GRIPPING CUTTER DRILL
CA1322459C (en) * 1989-05-19 1993-09-28 Jan Siden Abrasive wheel
AU3503689A (en) * 1989-05-19 1990-11-29 Inovac Ab An abrasive wheel
IE910433A1 (en) * 1990-02-14 1991-09-11 Boart Internat Ltd Button sharpening

Also Published As

Publication number Publication date
AU623010B2 (en) 1992-04-30
EP0399973B1 (en) 1994-01-05
CA2017335C (en) 1995-05-02
SE8901846D0 (en) 1989-05-24
DE69005700T2 (en) 1994-04-28
DE69005700D1 (en) 1994-02-17
US5138797A (en) 1992-08-18
SE463754B (en) 1991-01-21
ATE99587T1 (en) 1994-01-15
CA2017335A1 (en) 1990-11-24
AU5582390A (en) 1990-11-29
SE8901846L (en) 1990-11-25
EP0399973A1 (en) 1990-11-28

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